Average GPS coordinates for Smithtown Postcode location: -31.019, 152.95. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Smithtown on map:

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Listing cities & postcodes (1):
>> New South Wales, 2440 Smithtown, NSW NORTH COAST, GPS coordinates: -31.0186,152.9503